The United Nations convened on Monday to discuss a topic that isn't usually on their agenda: happiness. Throughout the day, speakers at the U.N. put forward their thoughts on how to measure and improve well-being around the world.

The United Nations convened on Monday to discuss a topic that isn't usually on their agenda: happiness. Throughout the day, speakers at the U.N. put forward their thoughts on how to measure and improve well-being around the world.